Moscow plans to open the replacement cycle by swapping Exchange and Outlook for email systems developed by New Cloud Technologies and distributed by by state-run carrier Rostelecom PJSC, Bloomberg reports. The software will be eventually deployed to as many as 600,000 computers.

The city is also considering dropping Windows and Office, but state officials are still looking into alternatives, says Moscow’s head of information technology Artem Yermolaev.

Putin has been pushing for technological independence after American corporations were forced to sever ties with major Russian institutions following the annexation of Crimea back in 2014.

To actively encourage the adoption of local solutions, Putin’s internet czar German Klimenko has plans to raise taxes on Western tech companies operating within Russia.

The move is consistent with the laws the Russian government has been passing in recent years as part of its mission to ensure effective oversight of the country’s tech infrastructure. Back in 2014, authorities began requiring websites accessible in Russia to host citizens’ personal data in local servers.